The Mastervolt ChargeMaster Plus Battery Charger is a complete range of battery chargers that provide efficient and reliable performance in all conditions.

This new generation of battery chargers offers multiple functions in one compact device. It reduces costs and simplifies the system by eliminating the need for additional battery chargers. With its 'Battery's Best Friend' architecture, the ChargeMaster Plus can charge any battery chemistry using the fast and safe 3-step+ charging method. It also has pre-float functionality to eliminate the risk of overcharging smaller batteries. This charger can communicate with Mastervolt Lithium Ion batteries, MasterShunt, or system display for real-time adjustments and optimal performance.

Universal Charging Capability: The Mastervolt ChargeMaster ensures efficient charging regardless of mains voltage, with auto-ranging technology spanning 90-265 V AC, 50 or 60 Hz. Its 3-step+ charging technology guarantees rapid and thorough charging, optimizing limited generator capacity through cos phi 1-regulation.
Durable Connections: Featuring robust metal-to-metal connectors with strain relief, the ChargeMaster prevents corrosion and overheating, ensuring reliable performance.
Multi-Bank Charging: The ChargeMaster series offers three equal charge outputs, with smaller models pre-installed with two meters of cable for easy setup. Larger models feature one full output and two 10 A outputs, suitable for service and starter batteries, respectively.
DC Power Supply: Even when batteries are disconnected, Mastervolt ChargeMaster chargers deliver a constant DC output, enabling auxiliary power for lights or refrigeration.

Features

Fast and safe 3-step+ charging method
'Battery's Best Friend' architecture
Can charge any battery chemistry
Pre-float functionality
Compatible with Mastervolt Lithium Ion batteries, MasterShunt, and system display
Improved cooling technology for low noise levels
Automatic power distribution
Automatic current distribution
Compatible with worldwide frequencies and mains voltages

(MV443CPBC)

Model	12/32-3	12/50-4	12/100-3	24/20-3	24/30-3	24/60-3	24/110-2
Part Number	44310355	44310505	44311005	44320205	44320305	44320605	44321105
Communication & monitoring
Communication interfaces	MasterBus, CZone, NMEA2000	MasterBus, CZone, NMEA	MasterBus, CZone, NMEA	MasterBus, CZone, NMEA2000	MasterBus, CZone, NMEA2000	MasterBus, CZone, NMEA	MasterBus, CZone, NMEA 2000
General specifications
Nominal output voltage	12 V			24 V
Secondary output voltage							14.25 /28.5 V (12/24 V)
Max. output current primary output	35 A	50 A	100 A	20 A	30 A	60 A	110 A
Max. output current secondary output	NA						5-15 A at 12 V / 5-20 A at 24 V (adjustable)
Smart In-/Output output voltage	12 V			12 or 24 V
Smart In-/Output output current			5-40 A (adjustable)			5-10 A at 12 V; 5-20 A at 24 V (adjustable)
Smart In-/Output input current			max. 40 A			max. 20 A at 24 V
Total charge current	35 A at 14,25 V	50 A at 14,25 V	100 A at 14.4 V	20 A bij 28,5 V	30 A at 28,5 V	60 A at 28.8 V	110 A at 28.8 V
Max. AC current (230 V / 120 V)	2.5 A / 5.0 A	3,5 A / 7,1 A	8.5 A / 17 A	2,8 A / 5,6 A	4.2 A / 8.6 A	10.2 A / 20.4 A	15.75 A / 31.5 A
Number of battery outlets	3 (max.)						2 (max.)
Battery bank size	140-350 Ah	200-400 Ah	400-1000 Ah	80-200 Ah	120-240 Ah	200-500 Ah	400-1000 Ah
Nominal input voltage	120/230 V (80-275 V) 50/60 Hz
AC connection	screw terminals, suitable up to up to 6 mm²
Power supply mode	yes
Galvanic isolation	yes
Display/read-out	LED display
Dimensions, hxwxd	291 x 210 x 105 mm	291 x 210 x 105 mm	384 x 250 x 127 mm	291 x 210 x 105 mm	291 x 210 x 105 mm	384 x 250 x 127 mm	384 x 250 x 127 mm
Weight	2,5 kg	2.5 kg	5.9 kg	2.5 kg	2.5 kg	5.9 kg	6.3 kg
Compliance	CE, CEC, DOE, ABYC, UL1236, cULus, SAE J1171, ISO 8846, ACMA		CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC/DOE, RCM/C-Tick, RMRS, RRR	CE, CEC, DOE, ABYC, UL1236, cULus, SAE J1171, ISO 8846, ACMA	CE, CEC, DOE, ABYC, UL1236, cULus, SAE J1171, ISO 8846, ACMA	CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC/DOE, RCM/C-Tick, RMRS, RRR	CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC/DOE, RCM/C-Tick, RRR
Technical specifications
Charge characteristic	IUoUo, automatic / 3-step+ for Gel/AGM/flooded/Lithium Ion + user defined option
Temperature compensation	-30 mV/°C / -17 mV/°F; temperature sensor included
DC voltage compensation	Yes, via automatic compensation or MasterShunt
Power consumption (DC side)	< 2 mA (MasterBus off)
Current Control function	yes, through MasterBus or CZone
Power factor control	> 0,98
Temperature range (ambient temp.)	-25 °C to 70°C, derating > 40 °C, 80% power at 60°C	-25 °C to 70°C, derating > 40 °C	-25 °C to 80 °C, derating < 0 °C and > 40	-25 °C to 70°C, derating > 40 °C, 80% power at 60°C	-25 °C to 70°C, derating > 40 °C, 80% power at 60°C	-25 °C to 80 °C, derating < 0 °C and > 40	-25 °C to 80 °C, derating > 40
Cooling	vario fan
Protection degree	IP23, vertical mounting
Protections	over-temperature, overload, short circuit, high/low battery voltage, ignition protection
Charger Status Interface (alarm contact)	yes, using a Multipurpose Contact Output (code 77030500)